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Water-retaining agent for shiitake mushroom sticks and preparation method of water-retaining agent

A technology for mushroom sticks and water-retaining agent, which is applied in the field of agricultural materials, can solve the problems of low mechanical properties of the water-retaining agent, single function of the water-retaining agent, and reduced water-retention capacity, and achieves good biodegradability, shortened degradation time, and good water retention. effect of action

Pending Publication Date: 2020-11-20
贵州同辉食用菌发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the function of the water-retaining agent is still relatively simple, and the mechanical properties of the above-mentioned water-retaining agent are low, and it is easy to be scratched to cause cracks, the water-retaining capacity is reduced, the bacteria stick is easy to be infected, and the service life is short

Method used

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  • Water-retaining agent for shiitake mushroom sticks and preparation method of water-retaining agent
  • Water-retaining agent for shiitake mushroom sticks and preparation method of water-retaining agent

Examples

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preparation example Construction

[0020] The invention provides a method for preparing a water-retaining agent for mushroom sticks, comprising: (1) preparation of silver ion-modified carbon nanotube / cellulose powder dispersion: silver ion-modified carbon nanotube / cellulose powder Cellulose powder is added in deionized water and ultrasonically dispersed to obtain silver ion-modified carbon nanotube / cellulose powder dispersion; wherein, the solid-to-liquid ratio of silver ion-modified carbon nanotube / cellulose powder and deionized water is 1mg: 2ml. (2) Preparation of biological natural polymer dispersion: add biological natural polymer to deionized water and ultrasonically disperse to obtain biological natural polymer dispersion; the solid-liquid ratio of biological natural polymer to deionized water is 1mg:2ml. (3) Preparation of pre-polymerization solution: Mix and stir the carbon nanotube / cellulose powder dispersion liquid modified by silver ions and the biological natural polymer dispersion liquid, add ammo...

Embodiment 1

[0024] This embodiment provides a water-retaining agent for mushroom sticks. The raw materials include: 70 parts by weight of polylactic acid, 3 parts of silver ion-modified carbon nanotube / cellulose powder (silver ion-modified carbon Nanotube / cellulose powder is prepared according to the aforementioned method, wherein the mass ratio of pretreatment mixed powder to silver salt is: 1:7), 12 parts of biological natural polymers (the mass ratio of sodium alginate, silk fibroin and gelatin is 1.5:2.5:2), 6 parts of calcium ion-containing salt and 10 parts of biodegradation catalyst (the mass ratio of rice husk powder, polyethylene, paraffin and polybutylene succinate is 2.5:4.5:0.3:0.2).

[0025] This embodiment also provides a method for preparing a water-retaining agent for mushroom sticks, including; (1) preparation of silver ion-modified carbon nanotube / cellulose powder dispersion: silver ion-modified carbon nanotube Tube / cellulose powder is added into deionized water for ultr...

Embodiment 2

[0027] The present embodiment provides a water-retaining agent for mushroom sticks. The raw materials include by weight: 65 parts of polylactic acid, 5 parts of silver ion-modified carbon nanotube / cellulose powder (silver ion-modified carbon Nanotube / cellulose powder is prepared according to the aforementioned method, wherein, the mass ratio of pretreatment mixed powder and silver salt is: 1:7), 7 parts of biological natural polymers (the mass ratio of sodium alginate, silk fibroin and gelatin is 1.5:2.5:2), 8 parts of calcium ion-containing salt and 8 parts of biodegradation catalyst (the mass ratio of rice husk powder, polyethylene, paraffin and polybutylene succinate is 2.5:4.5:0.3:0.2).

[0028] This example also provides a preparation method of a water-retaining agent for mushroom sticks, and the specific preparation method refers to Example 1.

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Abstract

The invention belongs to the technical field of agricultural materials, and provides a water-retaining agent for shiitake mushroom sticks and a preparation method of the water-retaining agent. The water-retaining agent is prepared from the following raw materials in parts by weight: polylactic acid, silver ion modified carbon nanotube / cellulose powder, biological natural macromolecules, calcium ion-containing salt and a biodegradation catalyst. The water-retaining agent is excellent in mechanical property, good in antibacterial property, environmentally friendly, easy to degrade and short in degradation time. The preparation method comprises the following steps: (1) preparing silver ion modified carbon nanotube / cellulose powder dispersion liquid; (2) preparing a biological natural polymerdispersion liquid; (3) preparing a pre-polymerization solution; and (4) extruding to form a film. The preparation method is easy to operate, environmentally friendly and free of pollution, and the water-retaining agent with excellent performance can be prepared.

Description

technical field [0001] The invention belongs to the technical field of agricultural materials, and in particular relates to a water-retaining agent for mushroom sticks and a preparation method thereof. Background technique [0002] At present, bag material shiitake mushroom cultivation technology is the most commonly used technology in shiitake mushroom cultivation. During the cultivation process of bagged shiitake mushrooms, the water retention of shiitake mushroom sticks is very important. In the prior art, the method of manually cutting bags is mostly used to retain water on the mushroom sticks. However, cutting bags by hand is not only time-consuming and laborious, but also easily causes deformity of the mushroom buds, and too many cuts can easily cause the moisture of the mushroom sticks to volatilize. [0003] In view of the above-mentioned shortcomings of hand-cut bags, water retention technology using paraffin-soaked bacteria sticks has appeared in recent years. H...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L1/02C08L5/04C08L89/00C08L97/02C08L23/06C08L91/06C08K9/02C08K3/04C08J5/18A01G18/00
CPCC08J5/18A01G18/00C08J2367/04C08J2401/02C08J2405/04C08J2489/00C08J2497/02C08J2423/06C08J2491/06C08K9/02C08K3/041C08K2201/011
Inventor 常树满秦志生
Owner 贵州同辉食用菌发展有限公司